Mushroom Slow Cooker Roast Beef Recipe

"This is tender, fall-off-the-bone roast beef with mushrooms. It’s perfect as-is. Shred the leftovers for cheese steak sandwiches."


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  • US
  • Metric
  • 1 pound sliced fresh mushrooms
  • 1 (4 pound) standing beef rib roast
  • 1 (1.25 ounce) envelope onion soup mix
  • 1 (12 fluid ounce) bottle beer
  • ground black pepper
  • Directions

  • Prep
  • Cook
  • Ready In
    1. Place the mushrooms in the bottom of a slow cooker; set the roast atop the mushrooms; sprinkle the onion soup mix over the beef and pour the beer over everything; season with black pepper. Set slow cooker to LOW; cook 9 to 10 hours until the meat is easily pulled apart with a fork.


    • Partner Tip
    • Try using a Reynolds® slow cooker liner in your slow cooker for easier cleanup.

    Nutrition Facts

    Per Serving: 388 calories;28.1 g fat;6.2 g carbohydrates;24.4 g protein;82 mg cholesterol;453 mg sodium.Full nutrition
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